Improvement in compositions for cornices



Patented Feb. 3. 1874.

INVENTOR: //2 &/Z

w. E. BnooK. Composition for fiorn'ices, 8w.

WITNESSES:

UNITED STATES PATENT O'rrron.

-WILLIAM E. BROOK, OF NEW YORK, N. Y.

IMPROVEMENT IN COMPOSITIONS FOR CORNICES, 8w.

Specification forming part of Letters Patent No. 146 985, dated February3, 1874; application filed July 3, 1873.

CASE ]3.

To all whom it may concern:

' Be it known that I, \VILLIAM E. BROOK, of Sew York city, in the countyand State of New York, have invented an Improved Composition for theManufacture of Oornices, or other articles which are exposed to theweather or to dampness, of which the following is a specification:

This invention, in the main, is similar to that described in Case A, forwhich I have made application for Letters Patent of even date herewith,which consists in saturating a woven fabric with a composition of glue,varnish, and whiting-in about the proportions of, glue, one pound;whiting, one pound; and varnish, four ounces-liquefied with a sufficientquantity of water and the required degree of heat. The fabric thussaturated is coated with fine sawdust, rolled in to combine with andabsorb any expressed portion of this mixture, and is thus made to adhereto the fabric, which, when dry, is to be coated with a mixture ofshellac dissolved in alcohol, and thickened with zincwhite or othersuitable material to give it body, which will form a coating imperviousto water. This coating may be repeated, if deemed nec'essa-r and itsobject is to prevent the softening of the fabric during the applicationof the finishing coats of the mixture, as described in Case A, which,when dry, is ready for polishing, if such is desired; but, for outdoorexposure, paint with or without sand would be the common style offinish.

In the accompanying drawing, Figure 1 rep resents a cross-section ofcomposition molding suitable for cornices, window-caps, or otherarchitectural ornamentation exposed to the weather. Fig. 2 shows a likesection of a ban ister-rail for either in or out-door use.

The difi'erent layers are indicated by letters, as follows: a representsthe woven fabric; 11, the layer of sawdust on each side, which is causedto adhere by being rolled into the saturated fabric; and c, in Fig. 2,is the coating of glue, varnish, and whiting on each side of thesawdust. d is the coating of shellac, alco 1101, and zinc-white, torender it water-proof, as before described, and c is the outer finishingcoat, all as before mentioned.

In Fig. 1, the saturated fabriea may be covered on its under side with astout paper, 0, to prevent it from sticking to the former, and, whensufficiently hard, is finished on the outside with the zinc compositiond, when it is in condition for painting and sanding for outdoor work.

WVhat I here claim as new, and desire to secure by Letters Patent, is

A woven fabric, saturated as described, coated first with fine sawdust,and, when dry, with an alcoholic solution of shellac, thickened withzinc-white or any other suitable material to give body, so as to beimpervious to moisture, to be finished substantially as hereinbeforedescribed.

V. E. BROOK.

W'itnesses W. MORRIS SMITH, H. A. DANIELS.

